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Journal Articles

ENDF/B-VII.1 nuclear data for science and technology; Cross sections, covariances, fission product yields and decay data

Chadwick, M. B.*; Herman, M.*; Oblo$v{z}$insk$'y$, P.*; Dunn, M. E.*; Danon, Y.*; Kahler, A. C.*; Smith, D. L.*; Pritychenko, B.*; Arbanas, G.*; Arcilla, R.*; et al.

Nuclear Data Sheets, 112(12), p.2887 - 2996, 2011/12

 Times Cited Count:1741 Percentile:100(Physics, Nuclear)

The ENDF/B-VII.1 library is our latest recommended evaluated nuclear data file for use in nuclear science and technology applications, and incorporates advances made in the five years since the release of ENDF/B-VII.0. These advances focus on neutron cross sections, covariances, fission product yields and decay data, and represent work by the US Cross Section Evaluation Working Group (CSEWG) in nuclear data evaluation that utilizes developments in nuclear theory, modeling, simulation, and experiment. It features extension of covered nuclei, covariance data for 190 nuclei, R-matrix analyses of neutron reactions on light nuclei, updates for some medium-heavy and actinoid nuclei, etc. Criticality benchmark tests with a transport simulation code MCNP shows improved performances.

Journal Articles

Trends in stimulated Brillouin scattering and optical phase conjugation

Ostermeyer, M.*; Kong, H.-J.*; Kovalev, V. I.*; Harrison, R. G.*; Fotiadi, A. A.*; M$'e$gret, P.*; Kalal, M.*; Slezak, O.*; Yoon, J. W.*; Shin, J. S.*; et al.

Laser and Particle Beams, 26(3), p.297 - 362, 2008/09

 Times Cited Count:40 Percentile:55.6(Physics, Applied)

Journal Articles

Quadrupole and hexadecapole ordering in DyB$$_2$$C$$_2$$; Direct observation with resonant X-ray diffraction

Tanaka, Yoshikazu*; Inami, Toshiya; Lovesey, S. W.*; Knight, K. S.*; Yakhou, F.*; Mannix, D.*; Kokubun, Jun*; Kanazawa, Masayuki*; Ishida, Kotaro*; Nanao, Susumu*; et al.

Physical Review B, 69(2), p.024417_1 - 024417_11, 2004/01

 Times Cited Count:35 Percentile:79.89(Materials Science, Multidisciplinary)

Direct evidence of the spatial ordering of Dy 4$$f$$ quadrupole and hexadecapole moments in DyB$$_2$$C$$_2$$ is demonstrated by resonant X-ray diffraction enhanced by an electric quadrupole event ($$E$$2 resonance) at the Dy L$$_{III}$$ absorption edge. The diffraction data show that the structural phase transition at $$T$$$$_{Q}$$ = 24.7 K is accompanied by a reduction in the symmetry of the Dy site to 2/$$m$$, from 4/$$m$$, and the spatial ordering of the time-even Dy multipoles with A$$_{g}$$ character. Below $$T$$$$_{Q}$$ the crystal structure is described by the space group $$P$$4$$_2$$/$$mnm$$ and Dy ions occupy sites (4$$c$$). The distortion at T$$_{Q}$$ involves the lattice occupied by B and C ions, and it amounts to a buckling of B-C planes that are normal to the two-fold rotation axis of 2/$$m$$. An immediately plausible model of low-energy Dy states correlates data on the specific heat, our X-ray diffraction signals, and magnetic ordering below 15.3 K which has been observed in magnetic neutron diffraction.

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